Drill-press.



M. HIMOH.

DRILL PRESS.

.7 APPLICATION FILED OCT. 3, 1913- 1.,171,123= I Patented Feb. 8,1916.

24 2 2 SHEETS-SHEET l.

/9 3 27 I w 25 J4 J2 IIIIHIIHHH IIHHHIII 1 M. HIMOFF. DRILL PRESS.

APPLICATION FILED OCT. 3, I913.

. 1 171 123 Patented Fel 8,1916.

7 2 SHEETSSHEET 2 MAX HIMOFF, OF NEW YORK, N. Y.

DRILL-PRESS.

Specification of Letters Patent.

Patented Feb. 8, 1916.

Application filed October 3, 1918. Serial No. 793,106.

' To all whom it may concern:

Be it known that I, MAX HIMOFF, a citizen of the United States, and resident of New 'York city, borough of Manhattan, in the county of New York and State of New York, have invented certain new and useful Improvements in Drill Presses, of which the following is a specification.

The object of my invention is to provide an improved drill press wherein the drill supporting spindle may be rotated around the axis .of its supporting column and securely held, and wherein said spindle may be adjusted laterally or in the direction of the radius of the drill, and adjusted vertically relatively to the axis of the column, and be held in such positions, and wherein gearing for rotating the drill-driving spindle may have proper adjustment with the latter in its different positions of adjustment as may be required.

My invention comprises novel details of improvement and combinations of parts that will be more fully hereinafter set forth and then pointed out in the claims.

Reference is to. be had to the accompanying drawings forming part hereof, wherein, Figure 1 is a front view of a drill press embodying my lmprovements, showing the drilling devices ad usted at one side of the supporting column relatively to the work support; Fig. 2 is a detail front view of a head for the drill-spindle; Fig.- 3 is a side view of the upper portion of the drill press, partly in section, showing the drilling devices at right angles to the position thereof shown in Fig. 1; Fig. 4 is a cross section on the line 4, 4, in Fig. 3; Fig. 5 is an enlarged detail section on the line 5, 5, in Fig. 2, and Fig. 6 is a section on the line 6, 6, in Fig. 3.

The numeral 1 indicates a suitable base upon which is mounted a work support 2, shown adapted to be raised and lowered by any suitable gearing 4, and held in set position by a screw 5, in a well known manner.

Upon an upright 1 secured on or formed with base 1, is rotativelv mounted a vertically disposed column 6. The column 6 is shown provided at its rear portion with a bracket 7 which may be secured to said column by screws 8, the lower portion 7 of which bracket is adapted to rest upon a segment-like flange 1", shown extending from upright 1 and provided with a slot 1 (Fig. 4) concentric with the axis of column tated by the latter.

I 6. A screw 9 engaging threads on bracket 7 is adapted to pass through slot 1 for looking theparts 7 and l rigidly together. By the means described the column 6 may be adjusted around its vertical axis and held in set position by screw 9 and the bracket 7, thus serving to brace column 6 and resist the thrust of the drill during working operations of the latter.

- At 10 is a drive shaft which may be vrotated by a pulley 10, which shaft is supported in suitable bearings upon base 1 and upright 1", and is shown provided with a gear 11 meshing with a gear 12 shown located within upright 1 and mounted upon a shaft 14 disposed vertically in the axis ofcolumn 6, and guided for rotary and vertical movements in a bearing 15' on said column, and in a bearing 16 on upright l. Shaft 14 is suitably keyed to gear 12, so that said shaft may have longitudinal movement vertically through column 6 and gear 12, and be rotated by the latter. Gear 12 is guided between suitable bearings 1 and 1 permitting shaft 14 to have longitudinal adjustment relatively thereto, as shown in Fig. 3. The upper end of shaft 14 is journaled in a bearing 17 on a slide 18, in such manner that said shaft will have up and down movement with said slide. One side face of column 6 is flattened at 6 and provided with a suitable vertically disposed guide 6 receiving the guideway 18 of slide 18. A vertically disposed screw 19 is shown journaled in' a bearing on a bracket 20, secured upon the top of column 6, and having a stop collar 21 below such bracket, which screw is in mesh with a nut or the like 21, on slide 18.

'Screw 19 is provided with a gear 19 in mesh with a gear l9 on a shaft 19 journaled on bracket 20 and provided with a handle 19", whereby, by rotating said screw to the right or left, the slide 18 may be adjusted up or down along column 6 and be held in set position. Below bearing 17 V the shaft 14 is shown provided with a collar 22, and above bearing 17 said shaft is.

shown provided with a. bevel gear 23 meshing with a bevel gear 24 mounted upon a shaft 25, which is keyed togear 24, through the medium of a key and the slot 25 in such manner that shaft 25 may slide back and forth through gear 24 and will be roin a bearing 26 on slide 18 above column Shaft 25 is journaled 6 and shaft 14. The arrangement is such that when slide 18 is raised and lowered, shaft and gears 24 and 23 will be raised and lowered therewith in conjunction with shaft 14.

Upon the outer side of slide 18 is guided a transversely adjustable arm 27, shown provided with inclined edges 27 coacting with the correspondingly shaped bearing 28 and gib 29 upon slide 18, whereby said arm is firmly held and guided for adjustment. Any suitable means, such as screws 30, may be provided for retaining arm 27 set upon slide 18 in adjusted position. At its outer end slide 27 is provided with a head 27 of suitable form adapted to support the drilling-spindle 31 and its guide 32. Spindle 31 is rotative within guide 32, raised and lowered therewith, and adapted for connection with chuck 33 in any well known man- --'ner. Guide 32 is guided in bearing 32 in head 27*, and provided with a rack 34 in mesh with a gear 35 operated by a handle 36, in any well knownmanner, for raising and lowering the spindle, chuck and drill. The spindle 31 is driven by a gear 37 journaled upon head 27, spindle 31 being shown provided with a longitudinal slot 31 receiving a key or pin on gear 37, whereby the latter will rotate spindle 31, and said spindle may be slid vertically through said gear in a well known manner. Gear 37 is in mesh with a gear 38 secured upon shaft 25, which shaft is journaled in a bearing 39 carried by head 27. The gear 38 on one side of said bearing and a collar 40 secured upon shaft 25 upon the'other side' of said bearing retain said shaft from longitudinal movement relatively to head 27*. To counterbalance the weight of guide 32 and chuck 33, I provide head 27 with a suitable recess 27 in which are journaled grooved pulleys 41, over which pass "a chain 42, the'lower bight of which chain receives a floating pulley 43. One end of said chain is suitably secured at 44 to head 27 and theother end is secured at 44 to guide 32.

The pulley 43 is connected with a suitable spring 45, shown located within recess 27, and connected at 46 with head 27. The arrangement is such that when guide 32 is raised and lowered thespring 45, by means of the pulleys 41 and 43, will not be unduly extended, and thereby may be made relatively short, while slide 32 has the required longitudinal movement, the spring and pulleys conveniently balancing the guide and chuck and being concealed within head 27.

As a convenient means for gaging the depth of drilling I have shown head 27 provided with a slot 27 in which is an-adjustable stop 47.in front of slide 32. The vertical edges of "slot 27 are shown provided with guides 27 (Fig. 5) against which stop 47 bears. A washer or the like 47 is shown located outside of guides 27" and a screw 47 serves to clamp the parts 47 and 47 in slot 27 upon guides 27.

32, above stop 4'7, is adapted to engage the latter. By adjusting stop 47 to the desired position the depression of guide 32 and the drill can be regulated as desired, since when projection 49 engages stop 47 the descentof the drill is stopped.

By means of my improvements the head 27*, with the drill chuck, may be adjusted in a rotary direction around the axis of column 6, and held in set position by means of bracket 7 and screw 9 in any position in which arm 27 may be vertically or laterally adjusted with respect to column 6 and work support 2. WVhen arm 27 is adjusted along slide 18 shaft 25 will slide through gear 24, and such adjustments can be made in any position in which slide 18 may be vertically set. To adjust arm 27 and the chuck up or down, in any position in which arm 27 may be set, screw 19 may be rotated to raise or lower the slide 18, the latter carrying with it arm 27, head 27, spindle 31, guide 32, and the chuck, at which time shaft 14 will be adjusted with slide 18 up and down through column 6 and gear 12. It will thus be seen that the drill spindle and its chuck may be readily adjusted in a rotary direction around the axis of column 6, within the limits of the transverse adjustment of the s indle permitted by the adjustment of arm 2 with respect to slide 18 and column 6, giving a wide range of such adjustments for the drilling operation, as well as an advantageous up and down adjustment of the drill in any of such positions.

Having now described my invention what I claim is:

1. A drill press comprising a base, a column thereon, a head supported by said col umn, a drill spindle and guide mounted upon said head, a pulley and spring carried by said head, a second pulley connected with said spring, and a flexible connection assing over said pulleys and connected at its ends respectively with said head and guide.

2. A drill press comprising a base, a head carried thereon, a drill spindle and guide therefor carried by said head, said head having a stop adjacent to said guide, a projection upon the guide to engage said step, and means for adjusting the stop and projection with relation one to another and holding the same in set position to regulate the descent of the guide. 4

3. A drill press comprising a base, a head carried thereon, a drill spindle and guide therefor carried by said head, said head .having a slot, a stop, means to adjustably 13o in line with said slot and adjacent to said guide, a washer having a pointer and adapted to coact with sald guide, a screw connecting said washer andstop to hold them adjustably on said guide, and a projection upon said first named guide to coact with said stop.

Signed at New York city, in the county 15 of New York, and State of New York, this 30th day of September, A. D. 1913.

MAX HIMOFF.

\Vitnesses:

MARIE F. VAINRIGHT, 1. F. BOURNE. 

